3665695 has 24 divisors (see below), whose sum is σ = 4960368. Its totient is φ = 2597760.

The previous prime is 3665677. The next prime is 3665731. The reversal of 3665695 is 5965663.

It is not a de Polignac number, because 3665695 - 2²¹ = 1568543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44124 + ... + 44206.

It is an arithmetic number, because the mean of its divisors is an integer number (206682).

Almost surely, 2^3665695 is an apocalyptic number.

3665695 is a deficient number, since it is larger than the sum of its proper divisors (1294673).

3665695 is a wasteful number, since it uses less digits than its factorization.

3665695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 172 counting only the distinct ones).

The product of its digits is 145800, while the sum is 40.

The square root of 3665695 is about 1914.6004805181. The cubic root of 3665695 is about 154.1885445780.

Subtracting 3665695 from its reverse (5965663), we obtain a cube (2299968 = 132³).

The spelling of 3665695 in words is "three million, six hundred sixty-five thousand, six hundred ninety-five".